After two whole days of flying and interviews and tests, my son was really looking forward to a "Mexican grilled cheese" (known to the rest of the world as a cheese quesadilla) during our layover at George Bush International.
So when he was only half finished and tipped his plate onto the floor and started crying in grief I had absolutely no qualms about picking his tortilla up off the floor, wiping it off and handing it back to him.
"It didn't hit the floor. I caught it," I lied for the benefit of anyone who might be watching.
What would you have done?